string = "GDUF-CM-andy"
print(string[0:-1])
print(string[0:])
print(string[0:4])
print(string[8:])
print(string[5:7])
print(string[-5:-7])
ID = "445691200505015665"
print(ID[-18:-12])
print(ID[0:-2])
print(ID[0:6])
print(ID[6:14])